CentOS 7 中firewall-cmd命令详细介绍

 CentOS 7 中firewall-cmd命令

在 CentOS 7

暂时开放 ftp 服务
# firewall-cmd --add-service=ftp

永久开放 ftp 服务
# firewall-cmd --add-service=ftp --permanent

永久关闭
# firewall-cmd --remove-service=ftp --permanent
success

让设定生效
# systemctl restart firewalld

检查设定是否生效
# iptables -L -n | grep 21
ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:21 ctstate NEW

检查防火墙状态
# firewall-cmd --state
running

# systemctl stop firewalld
# firewall-cmd --state
not running

  # firewall-cmd --list-all  public (default)   interfaces:   sources:   services: dhcpv6-client ftp ssh   ports:   masquerade: no   forward-ports:   icmp-blocks:   rich rules:  

在 FirewallD 的服务名称

  # firewall-cmd --get-service  amanda-client bacula bacula-client dhcp dhcpv6 dhcpv6-client dns ftp   high-availability http https imaps ipp ipp-client ipsec kerberos kpasswd   ldap ldaps libvirt libvirt-tls mdns mountd ms-wbt mysql nfs ntp openvpn   pmcd pmproxy pmwebapi pmwebapis pop3s postgresql proxy-dhcp radius   rpc-bind samba samba-client smtp ssh telnet tftp tftp-client transmission-client vnc-server wbem-https    

查询服务的启用状态
# firewall-cmd --query-service ftp
yes
# firewall-cmd --query-service ssh
yes
# firewall-cmd --query-service samba
no
# firewall-cmd --query-service http
no

自行加入要开放的 Port

  # firewall-cmd --add-port=3128/tcp  # firewall-cmd --list-all  public (default)   interfaces:   sources:   services: dhcpv6-client ftp ssh   ports: 3128/tcp   masquerade: no   forward-ports:   icmp-blocks:   rich rules:  

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